STIEBEL ELTRON | WPL 15 AS-25 A (AS) | Operation Instruction | Stiebel Eltron WPL 15 AS-25 A (AS) Operation Instruction

Stiebel Eltron WPL 15 AS-25 A (AS) Operation Instruction
OPERATION AND INSTALLATION
Air | water heat pump
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CONTENTS

SPECIAL INFORMATION
11.2
OPERATION
11.3
11.4
11.5
Using the appliance with an external second heat
generator��������������������������������������������������������� 18
Settings����������������������������������������������������������� 18
Operation and control ����������������������������������������� 19
Decommissioning����������������������������������������������� 19
12.
Maintenance������������������������������������������������ 19
13.
13.1
13.2
13.3
13.4
Troubleshooting�������������������������������������������� 20
Light emitting diodes (LEDs)���������������������������������� 21
Reset button����������������������������������������������������� 21
Resetting the high limit safety cut-out��������������������� 22
Fan noise��������������������������������������������������������� 22
14.
14.1
14.2
14.3
14.4
14.5
14.6
14.7
14.8
14.9
Specification������������������������������������������������ 24
Dimensions and connections��������������������������������� 24
Wiring diagram for WPL 15 AS | WPL 25 AS (singlephase)������������������������������������������������������������� 26
Wiring diagram for WPL 25 A (3-phase)������������������� 28
Heating output diagram WPL 15 AS������������������������� 30
DHW output diagram WPL 15 AS���������������������������� 30
Heating output diagram WPL 25 AS������������������������� 31
DHW output diagram WPL 25 AS���������������������������� 31
Heating output diagram WPL 25 A�������������������������� 32
DHW output diagram WPL 25 A������������������������������ 32
15.
Data table��������������������������������������������������� 33
1.
1.1
1.2
1.3
1.4
1.5
General information�����������������������������������������4
Safety instructions����������������������������������������������� 4
Other symbols in this documentation����������������������� 4
Information on the appliance��������������������������������� 4
Units of measurement������������������������������������������ 4
Standardised output data�������������������������������������� 4
2.
2.1
2.2
2.3
Safety����������������������������������������������������������5
Intended use������������������������������������������������������ 5
Safety instructions����������������������������������������������� 5
CE designation��������������������������������������������������� 5
3.
3.1
3.2
Appliance description���������������������������������������5
Properties��������������������������������������������������������� 5
Function����������������������������������������������������������� 5
4.
Settings �������������������������������������������������������6
5.
Maintenance and care���������������������������������������6
6.
Troubleshooting����������������������������������������������6
INSTALLATION
7.
7.1
7.2
Safety����������������������������������������������������������7
General safety instructions������������������������������������ 7
Instructions, standards and regulations�������������������� 7
8.
8.1
8.2
Appliance description���������������������������������������7
Standard delivery������������������������������������������������ 7
Accessories�������������������������������������������������������� 7
9.
9.1
9.2
9.3
9.4
9.5
9.6
9.7
9.8
Preparations��������������������������������������������������7
Sound emissions������������������������������������������������� 7
Minimum clearances�������������������������������������������� 8
Preparation of the installation location��������������������� 8
Installation�������������������������������������������������������� 8
Installing supply lines and supply cables������������������� 9
WPM heat pump manager������������������������������������� 9
Buffer cylinder��������������������������������������������������� 9
Preparing the electrical installation������������������������ 10
WARRANTY
ENVIRONMENT AND RECYCLING
10.
10.1
10.2
10.3
10.4
10.5
10.6
10.7
10.8
10.9
10.10
10.11
10.12
Installation�������������������������������������������������� 10
Handling���������������������������������������������������������� 10
Siting�������������������������������������������������������������� 10
Heating water connection������������������������������������� 10
Flow and return connection���������������������������������� 10
Fitting the push-fit connecto��������������������������������� 11
Oxygen diffusion������������������������������������������������ 11
Filling the heating system������������������������������������ 12
Minimum flow rate��������������������������������������������� 12
Setting the flow rate on the heating side������������������ 12
Condensate drain����������������������������������������������� 13
External second heat generator����������������������������� 13
Safety temperature controller for underfloor heating
system STB-FB�������������������������������������������������� 13
10.13 Power supply���������������������������������������������������� 13
11.
11.1
Commissioning��������������������������������������������� 17
Checks before commissioning������������������������������� 17
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SPECIAL INFORMATION

ENGLISH
SPECIAL INFORMATION
-- The appliance may be used by children aged 8
and up and persons with reduced physical, sensory or mental capabilities or a lack of experience
and know-how provided that they are supervised
or they have been instructed on how to use the
appliance safely and have understood the resulting risks. Children must never play with the appliance. Children must never clean the appliance
or perform user maintenance unless they are
supervised.
-- Use a permanent connection to the power supply.
The appliance must be able to be separated from
the power supply by an isolator that disconnects
all poles with at least 3 mm contact separation.
-- Maintain the minimum clearances to ensure trouble-free operation of the appliance and facilitate
maintenance work.
-- Maintenance work, such as checking the electrical safety, must only be carried out by a qualified
contractor.
-- We recommend an annual inspection (to establish
the system’s current condition), and maintenance
by a qualified contractor if required (to return the
system to the desired condition).
-- Nach dem Spannungsfreischalten des Gerätes
Following isolation from the mains supply, parts
of the appliance may remain live for up to 2 minutes since the capacitors still have to discharge
into the inverter.
-- Never interrupt the power supply, even outside
the heating period. The system’s active frost protection is not guaranteed if the power supply is
interrupted.
-- If the heat pump and frost protection are completely switched off, drain the system on the
water side.
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OPERATION
General information
OPERATION
ff
This symbol indicates that you have to do something. The action you need to take is described step by step.
1.3
1.
General information
Information on the appliance
Symbol
The chapter "Operation" is intended for appliance users and qualified contractors.
Meaning
Never cover the appliance
The chapter "Installation" is intended for qualified contractors.
Note
Read these instructions carefully before using the appliance and retain them for future reference.
Pass on the instructions to a new user if required.
1.1
Safety instructions
1.1.1 Structure of safety instructions
KEYWORD Type of risk
Here, possible consequences are listed that may result
from failure to observe the safety instructions.
ff
Steps to prevent the risk are listed.
!
1.1.2 Symbols, type of risk
Symbol
Type of risk
Injury
!
Electrocution
Burns
(burns, scalding)
1.1.3 Keywords
KEYWORD
DANGER
WARNING
CAUTION
1.2
Meaning
Failure to observe this information will result in serious
injury or death.
Failure to observe this information may result in serious
injury or death.
Failure to observe this information may result in non-serious or minor injury.
1.4
Units of measurement
Note
All measurements are given in mm unless stated otherwise.
1.5
Standardised output data
Explanations to determine and interpret the specified standardised
output data.
1.5.1 EN 14511
The output data specifically mentioned in text, diagrams and
technical datasheets has been calculated according to the test
conditions of the standard shown in the heading of this section.
However, there is a deviation from this norm in the output data for
air/water inverter heat pumps at source temperatures of > -7 °C
as this concerns partial load values. The associated percentage
weighting in the partial load range can be found in EN 14825 and
EHPA quality label regulations.
Generally, the test conditions stated above will not fully meet the
conditions found at the installation site of the system user.
Depending on the chosen test method and the extent to which
this method deviates from the test conditions defined in the first
paragraph of this section, any deviations can have a considerable
impact.
Further factors that have an influence on the test values are the
measuring equipment, the system configuration, the age of the
system and the flow rates.
A confirmation of the specified output data can only be obtained
if the test conducted for this purpose is also performed in accordance with the test conditions defined in the first paragraph
of this section.
Other symbols in this documentation
Note
General information is identified by the symbol shown
on the left.
ff
Read these texts carefully.
Symbol
!
Meaning
Material losses
(appliance and consequential losses, environmental pollution)
Appliance disposal
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2.
Safety
3.
Appliance description
2.1
Intended use
3.1
Properties
Observe the application limits listed in chapter "Specification /
Data table".
This appliance is intended for domestic use. It can be used safely
by untrained persons. The appliance can also be used in a non-domestic environment, e.g. in a small business, as long as it is used
in the same way.
Any other use beyond that described shall be deemed inappropriate. Observation of these instructions and of instructions for any
accessories used is also part of the correct use of this appliance.
2.2
Safety instructions
Observe the following safety instructions and regulations.
-- Only qualified contractors should carry out the electrical
work and installation of this appliance.
-- The qualified contractor is responsible for adherence to all
currently applicable instructions during installation and
commissioning.
-- Operate the appliance only when fully installed and with all
safety equipment fitted.
-- Protect the appliance from dust and dirt ingress during
building work.
!
2.3
WARNING Injury
The appliance may be used by children aged 8 and up and
persons with reduced physical, sensory or mental capabilities or a lack of experience and know-how provided
that they are supervised or they have been instructed
on how to use the appliance safely and have understood
the resulting risks. Children must never play with the
appliance. Children must never clean the appliance or
perform user maintenance unless they are supervised.
CE designation
The CE designation shows that the appliance meets all essential
requirements according to the:
-- Electromagnetic Compatibility Directive
-- Low Voltage Directive
The appliance is a heating heat pump for outdoor installation that
operates as an air | water heat pump. Heat is extracted from the
outdoor air at a low temperature level, and is then transferred to
the heating water at a higher temperature. The heating water can
be heated up to a flow temperature of 65 °C.
The appliance is equipped with an electric emergency/booster
heater (DHC). If the dual mode point can no longer be maintained
in mono mode operation, the electric emergency/booster heater is activated to safeguard heating operation and the provision
of high DHW temperatures. In such cases, the electric emergency/booster heater is activated in mono energetic operation as a
booster heater.
This appliance has further operational characteristics:
-- Suitable for underfloor and radiator heating.
-- Preferred for low temperature heating systems.
-- Extracts heat from the outdoor air even at –20 °C outside
temperature.
-- Corrosion-protected, external casing made from hot-dipped
galvanised sheet steel plus stove-enamelled finish.
-- Comprises all components and safety equipment required for
operation.
-- Filled with non-combustible safety refrigerant.
Note
For centralised control of the heating system you will
need heat pump manager WPM.
3.2
Function
Heat is extracted from the outdoor air via the heat exchanger
(evaporator) on the air side. The evaporated refrigerant is compressed by a compressor. Electrical energy is necessary for this
process. At this point, the refrigerant is at a higher temperature
level. A further heat exchanger (condenser) transfers the heat to
the heating circuit. During this process, the refrigerant expands,
and the cycle restarts from the beginning.
At air temperatures below approx. +7 °C, the humidity in the air
condenses as hoarfrost on the evaporator fins. Any hoarfrost is
automatically defrosted. Water created by this process collects in
the defrost pan and is drained off via a hose.
!
Material losses
In the defrost cycle, the fan is switched off and the heat
pump circuit is reversed. The heat required for defrosting
is drawn from the buffer cylinder. For operation without a
buffer cylinder, the general conditions defined in chapter
"Installation without buffer cylinder" must be adhered to.
Otherwise the heating water freezes under unfavourable
conditions.
The heat pump automatically reverts to heating mode at the end
of the defrost cycle.
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ENGLISH
OPERATION
Safety
OPERATION
Settings
4.
Material losses
In dual mode operation, the return water of the second
heat generator can flow through the heat pump. Please
note that the return temperature must be no higher than
60 °C.
Settings
The system is operated exclusively by the WPM heat pump manager.
ff
Please observe the heat pump manager operating and installation instructions.
5.
Maintenance and care
!
Material losses
Maintenance work, such as checking the electrical safety,
must only be carried out by a qualified contractor.
A damp cloth is sufficient for cleaning all plastic and sheet metal
parts. Never use abrasive or corrosive cleaning agents.
6.
Troubleshooting
Fault
The external unit
leaks water.
Cause
The condensate drain may be
blocked.
Remedy
Clean the condensate
drain as described
in chapter ‘Care and
maintenance’.
This can cause the The heat pump is drawing heat
humidity in the
from the outdoor air to heat the
outdoor air to ac- building. This can cause the humidcumulate as dew or ity in the outdoor air to accumulate
frost on the cooled as dew or frost on the cooled heat
heat pump casing pump casing. This is not a defect.
Note
Even when the condensate is draining away correctly,
expect water to drip from the appliance onto the floor.
If you cannot remedy the fault, notify your qualified contractor.
To facilitate and speed up your enquiry, please provide the serial
number from the type plate. The type plate is located at the front
top, on the right or left hand side of the casing.
Sample type plate
Check the condensate drain monthly (visual inspection). Remove
contamination and blockages immediately (see chapter "Installation / Condensate drain").
*xxxxxxxxxxxxxxxxxx*
1.
2.
Montageanweisung beachten! Dichtheit geprüft!
Made in Germany
1
26_03_01_1736
!
1
D0000037831
1 Number on the type plate
1 Inspection port
!
Material losses
Keep the air discharge and intake apertures free from
snow and leaves.
We recommend an annual inspection (to establish the current condition of the system), and maintenance by a qualified contractor if
required (to return the system to its original condition).
Protect the appliance from dust and dirt ingress during building
work.
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INSTALLATION
Safety
7.
Safety
Only a qualified contractor should carry out installation, commissioning, maintenance and repair of the appliance.
7.1
General safety instructions
We guarantee trouble-free function and operational reliability only
if original accessories and spare parts intended for the appliance
are used.
7.2
Instructions, standards and regulations
Note
Observe all applicable national and regional regulations
and instructions.
8.
Appliance description
The appliance offers frost protection for the connection lines. The
integral frost protection circuit starts the circulation pump in the
heat pump circuit automatically at a condenser temperature of
8 °C, and thereby ensures circulation in all water-carrying sections. If the temperature inside the buffer cylinder drops, the heat
pump starts automatically no later than when the temperature
falls below +5 °C.
8.1
9.
Preparations
The appliance is designed for siting in front of a wall. Observe the
minimum clearances. If the appliance is installed in an open space
or on a roof, protect the air intake side. Do this by erecting a wall
to shield it against the wind.
9.1
Sound emissions
The appliance is louder on the air intake and air discharge sides
than on the two enclosed sides. Observe the following information
when selecting the installation location.
Note
For details regarding the sound power level, see chapter
"Specification / Data table".
-- Lawn areas and shrubs help reduce the spread of noise.
-- Sound propagation can also be reduced by installing closely
spaced palisade fencing around the appliance.
ff
Ensure that the air intake direction is the same as the main
wind direction.
ff
Air should not be blown out against the wind.
ff
Never direct the air intake or discharge towards noise-sensitive rooms of the house, e.g. bedrooms.
ff
Avoid installation on large, echoing floor areas, e.g. tiled
floors.
ff
Avoid installation between reflective building walls. Reflecting building walls can increase the sound level.
ff
Maintain the minimum clearances to ensure trouble-free operation of the appliance and facilitate maintenance work.
Standard delivery
The following are delivered with the appliance:
-- Wiring diagram
8.2
Accessories
8.2.1 Required accessories
Designation
Heat pump manager in wall mounting enclosure, WPMW
8.2.2 Further accessories
Designation
Remote control for heating systems FEK
Remote control for heating systems FE7
Ribbon heater HZB-SK 1
Ribbon heater HZB-SK 2
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ENGLISH
INSTALLATION
INSTALLATION
Preparations
9.2
Minimum clearances
WPL 15 AS
1
1300
140
200
75
≥800
3
4
100
5
≥300
2
D0000034133
750
410
WPL 25 A | WPL 25 AS
1
≥500
≥1000
3
200
75
1500
140
5
410
D0000028298
100
750
D0000028299
≥2000
4
91_00_00_0036
2
ff
Do not install the appliance in a recess. Two sides of the appliance must remain exposed.
9.3
1 Air intake
2 Air discharge
3 Main wind direction
4 Supply line recess
5 Condensate drain recess (minimum diameter 70 mm)
ff
Ensure that the foundations offer the necessary recess.
Preparation of the installation location
ff
Observe chapter “Sound emissions”.
ff
Ensure that the appliance is accessible from all sides.
9.4
Installation
Example: Foundations with recess
-- The substrate must be horizontal, level, solid and permanent.
ff
Ensure the entire appliance frame is in full contact with the
substrate. Uneven substrates can increase noise emissions.
If the supply lines are run downwards through the ground, they
must be laid in a recess (space) in the foundation.
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INSTALLATION
Preparations
2
1
B A
5
C
3
D0000028297
4
6
A
B
C
1
2
3
4
5
6
100
300
Depth of frost line
Heating flow
Heating return
Condensate drain
Condensate drain pipe
Foundation
Gravel bed
Note
When routing the condensate hose, observe chapter "Installation / Condensate drain".
WPM heat pump manager
A WPM heat pump manager is required to operate the appliance.
This controls the entire heating system.
9.7
Buffer cylinder
A buffer cylinder is recommended to ensure trouble-free appliance
operation. The buffer cylinder (SBP) not only provides hydraulic
separation of the throughput in the heat pump circuit and heating
circuit, but also serves as an energy source for defrosting the
evaporator. In this connection, read chapter "Minimum flow rate".
9
8
5
3
4
7
6
D0000050006
A
B
1
The supply lines are all electric cables plus the heating flow and
return lines.
ff
Use only weather-resistant cables, e.g. NYY.
ff
Protect the flow and return lines against frost, with sufficient
thermal insulation. Provide the thermal insulation in accordance with applicable regulations.
ff
Also protect all supply lines/cables against humidity, damage
and UV radiation by means of a conduit.
ff
Protect the supply lines and cables routed through the
ground from moisture and damage by routing them through
a conduit.
ff
Protect all pipe fixings and outer wall transitions with anti-vibration insulation.
9.6
Example: Floor plinth SK-WPL
2
Installing supply lines and supply cables
A Depth of frost line
B 300
1 Heating flow
2 Heating return
3 Conduit for supply lines/cables
4 Foundation
5 T-support
6 Gravel bed
7 Drainage pipe
8 Condensate drain
9 Cover
ff
Observe the static limits of the T-support used.
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ENGLISH
9.5
Example: Laying pipes above ground
INSTALLATION
Installation
9.8
Preparing the electrical installation
10. Installation
Note
The device is designed in such a way that it can be positioned and connected without removing the cover or
side panels.
WARNING Risk of electrocution!
Carry out all electrical connection and installation work
in accordance with national and regional regulations.
WARNING Risk of electrocution!
Use a permanent connection to the power supply. The
appliance must be able to be separated from the power
supply by an isolator that disconnects all poles with at
least 3 mm contact separation. This requirement can be
met by contactors, isolators, fuses, etc.
!
Material losses
The specified voltage must match the mains voltage. Observe the type plate.
!
Material losses
Provide separate fuses for the 3 power circuits (for the
appliance, the electric emergency/booster heater and the
control unit).
ff
Route cables with the following cross-sections in accordance
with the respective fuse rating:
Fuse protec- Assignment
tion
1x C 20 A
Heat pump
(single phase)
WPL 15 AS
1x C 35 A
Heat pump
(single phase)
WPL 25 AS
3x C 16 A
2x B 16 A
3x B 16 A
1x B 16 A
Cable cross-section
2.5 mm² for routing above the surface
4.0 mm² for routing through a wall
6.0 mm² for routing through a wall
4.0 mm² when routing multi-core cables
on a wall or in an electrical conduit on
a wall.
Heat pump
2.5 mm²
(3-phase)
1.5 mm² with only two live cores and
WPL 25 A
routing on a wall or in an electrical conduit on a wall.
Electric emergen- 2.5 mm² for routing through a wall
cy/booster heater 1.5 mm² when routing multi-core cables
WPL 15 AS
on a wall or in an electrical conduit on
WPL 25 AS
a wall.
Electric emergen- 2.5 mm²
cy/booster heater 1.5 mm² with only two live cores and
WPL 25 A
routing on a wall or in an electrical conduit on a wall.
Control
1.5 mm²
The electrical data is provided in the "Specification" chapter. You
require a J-Y (St) 2x2x0.8 mm² cable as BUS cable.
Note
This appliance contains inverters (e.g. inverter-compressors, EC circulation pumps or EC fan motors), which may
cause DC residual currents in the event of a fault. If a residual current device is to be installed, use a type B RCD.
ff
Ensure that the power supply for this heat pump is
separated from the domestic fuse box, as a type A
RCD could become blocked in the event of a DC residual current.
10 | WPL A | WPL AS
10.1 Handling
ff
Use the recessed grips provided at the sides.
!
Material losses
Protect the appliance against heavy impact during
transport.
Only allow the appliance to be tilted during transport for a short
time to one of its longitudinal sides. The longer the appliance is
tilted, the greater the distribution of refrigerant oil in the system.
Wait approx. 30 minutes before starting the appliance after it has
been tilted.
10.2 Siting
ff
When installing the appliance, observe the air intake
direction.
ff
Position the standard appliance on the prepared substrate.
10.3 Heating water connection
The heat pump heating system must be connected by a qualified
contractor in accordance with the water installation drawings,
which are part of the technical guides.
ff
Thoroughly flush the pipework before connecting the heat
pump. Foreign bodies, such as welding beads, rust, sand,
sealant, etc. can impair the operational reliability of the heat
pump.
ff
Connect the heat pump on the heating water side. Check for
tightness.
ff
Ensure the correct connection of the heating flow and return.
To facilitate connection to the heating system, push-fit connectors
are enclosed with the appliance (see chapter "Fitting the push-fit
connectors").
ff
Provide the thermal insulation in accordance with applicable
regulations.
ff
When designing the heating circuit, observe the internal
pressure difference (see chapter "Specification / Data table").
10.4 Flow and return connection
!
Material losses
Insulate the heating flow and return lines with vapour
diffusion-proof material.
ff
Take the position of the heating flow and return from the following figure:
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INSTALLATION
Installation
ENGLISH
3 Gap between screw cap and main body
4 Main body
1
2
1 Heating flow
2 Heating return
3 Drain
4 Ventilation
ff
Connect the heat pump to the heating circuit. Check for
tightness.
26_03_01_0693
Pipe Ø
Depth of insertion A
!
10.5 Fitting the push-fit connecto
Note
Never install the push-fit connectors in the DHW line.
Only install the push-fit connectors in the heating circuit
and the solar circuit.
!
Material losses
Tighten the screw cap of the push-fit connector by hand.
Never use a tool.
!
Material losses
Support sleeves are required when using plastic pipes.
28 mm
44 mm
Material losses
Pipe ends must be deburred.
ff
Always use a pipe cutter to trim pipes.
ff
Push the pipe through the O-ring into the push-fit connector
until it reaches the prescribed insertion depth.
ff
Tighten the screw cap by hand against main body as far as it
will go. This locks the push-fit connection.
Undoing the push-fit connection
If the push-fit connectors later need to be undone, proceed as
follows:
ff
Turn the screw cap anti-clockwise until there is a narrow gap
of approx. 2 mm. Press the retainer back with your fingers
and hold on to it.
ff
Pull out the inserted pipe.
26_03_01_0693
3
26_03_01_1871
4
How the push-fit connectors work
The push-fit connectors are equipped with a retainer with stainless steel serrations and an O-ring seal. In addition, the pushfit connectors are equipped with the “twist and lock” function.
Simply turning the screw cap by hand will secure the pipe in the
connector and push the O-ring against the pipe to seal it.
Making the push-fit connection
The connector must be in its relaxed position before the pipe is
inserted. In this position, there is a small gap between the screw
cap and main body.
3
4
!
Material losses
In underfloor heating systems with plastic pipes that are
permeable to oxygen, avoid open vented heating systems
or steel pipework.
With permeable plastic underfloor heating system pipes or open
vented heating systems, oxygen diffusion can cause corrosion of
steel components if steel radiators or steel pipes are used.
The products of corrosion, e.g. rusty sludge, can settle inside the
heat pump condenser and result in a lower output by reducing
the cross-section, or in a shutdown being activated by the high
pressure switch.
26_03_01_0693
1
2
10.6 Oxygen diffusion
1 Retainer
2 Screw cap
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WPL A | WPL AS | 11
INSTALLATION
Installation
10.7 Filling the heating system
10.8 Minimum flow rate
ff
Fill the heating system via the drain (see chapter "Specification / Dimensions").
For heating operation without a buffer cylinder, safeguard the
minimum flow rate specified in the following table as well as the
defrost energy.
10.7.1 Water quality
Before the system is filled, a fill water analysis must be made
available. This may, for example, be requested from the relevant
water supply utility.
Heat pump
Minimum flow rate
WPL 15 AS
WPL 25 A / WPL 25 AS
0.7 m³/h
1.0 m³/h
To avoid damage as a result of scaling, it may be necessary to
soften or desalinate the fill water. The fill water limits specified
in chapter "Specification / Data table" must always be observed.
ff
Recheck these limits 8-12 weeks after commissioning and as
part of annual system maintenance.
ff
Make the correct adjustments to the overflow valve.
Note
With conductivity of >1000 μS/cm, desalination treatment
is recommended in order to avoid corrosion.
Pump head
6m
Pump head to be adjusted at the overflow valve*
4.1 m
7m
8m
5.1 m
6.1 m
*Relative to commercially available Wilo and Grundfos pumps.
Note
When installing a heat meter, note that most heat meters
cause a substantial pressure drop. Consequently, size the
circulation pump correspondingly larger.
Note
If you treat the fill water with inhibitors or additives, the
same limits as for desalination apply.
Note
Suitable appliances for water softening, as well as for
filling and flushing heating systems, can be obtained via
trade suppliers.
10.7.2 Venting the heating system
10.9 Setting the flow rate on the heating side
!
Material damage
For operation without a buffer cylinder, it is essential
that the electric emergency/booster heater (DHC) is connected.
The appliance is designed in such a way that no buffer cylinder
is required to provide hydraulic separation of the flow in the heat
pump circuit and the heating circuit in conjunction with area heating systems.
For installations with several heating circuits, we recommend the
use of a low loss header.
1
The setting is made in heat pump mode. For this, make the following settings first:
26_03_01_1871
Operate the appliance in heating mode.
1 Ventilation
ff
Vent the pipework by activating the ventilation.
To do so, switch on the appliance using the parameter SET FIXED
TEMPERATURE in the COMMISSIONING menu.
10.9.1 Minimum flow rate with individual room control via
FEK/FE 7 for systems without a buffer cylinder and
without a low loss header
For operation without buffer cylinder, make the following setting at the WPM: In the menu SETTINGS / HEATING / STANDARD
SETTING, set parameter BUFFER OPERATION to OFF.
In such cases, one or more heating circuits in the heating system
must remain open. The open heating circuit(s) should be installed
in the lead room (room in which the external programming unit
is installed, e.g. the living room). Individual rooms can then be
controlled with the external programming unit or indirectly by
adjusting the heating curve or by activating room influence.
ff
Fully open the heating circuit(s) in the lead room.
ff
Close all other heating circuits.
12 | WPL A | WPL AS
www.stiebel-eltron.com
ff
If an overflow valve is installed in the heating system, close
this fully before determining the minimum flow rate.
ff
Make the settings for the heating circuit pump so that the
minimum flow rate required for system operation is ensured
(see chapter „Specification / Data table“).
The current flow rate can be called up in the menu INFO / HEAT
PUMP / PROCESS DATA, under WP WATER FLOW RATE.
10.9.2 Minimum flow rate for systems with buffer cylinder or
low loss header
For operation with buffer cylinder, make the following setting at
the WPM: In the menu SETTINGS / HEATING / STANDARD SETTING, set parameter BUFFER OPERATION to ON.
ff
Make the settings for the heating circuit pump so that the
nominal flow rate required for system operation is ensured
(see chapter „Specification / Data table“).
The current flow rate can be called up in the menu INFO / HEAT
PUMP / PROCESS DATA, under WP WATER FLOW RATE.
ff
For operation without a buffer cylinder and with a low loss
header, ensure that the electric emergency/booster heater is
connected.
10.10 Condensate drain
A condensate drain connector is factory fitted to the defrost pan
to enable any condensate that may form to drain off.
!
Material losses
Ensure the condensate hose is not kinked. Route the hose
with a slope.
ff
After routing the condensate hose, check that the condensate
can drain correctly.
ff
Please also observe the chapter "Electrical connection of supplementary heating facility".
10.11 External second heat generator
For dual mode systems, always connect the heat pump into the
return of the second heat generator (e.g. oil boiler).
10.12 Safety temperature controller for underfloor
heating system STB-FB
!
Material losses
In case of failure, in order to prevent an excessively high
flow temperature in the underfloor heating system, we
generally recommend the use of a safety temperature
controller to limit the system temperature.
10.13 Power supply
WARNING Electrocution
ff
Before any work, isolate the appliance from the
power supply at the control panel.
Following isolation from the mains supply, parts of the
appliance may remain live for up to 2 minutes since
the capacitors still have to discharge into the inverter.
The connection must only be carried out by a qualified contractor
and in accordance with these instructions.
Permission to connect the appliance may need to be obtained from
your local power supply utility.
1
26_03_01_1868
Note
Observe the operating and installation instructions for
the WPM heat pump manager.
1 Condensate drain
If required, you may install a supplementary heating facility inside
the condensate drain pipe on site. We recommend that you install
a supplementary heating facility if the routing of the condensate
hose means it is at risk of frost or is fully exposed to the elements.
If the appliance is mounted on a wall mounting bracket or T-support, a supplementary heating facility must be fitted.
ff
If the appliance is mounted on a wall bracket or T-support,
attach a condensate hose to the condensate drain.
ff
Protect the condensate hose against frost with sufficient
thermal insulation.
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The terminals are located in the wiring chamber of the appliance.
Observe chapter "Preparing the electrical installation".
ff
Use appropriate electrical cables in accordance with local
regulations for all connections.
WPL A | WPL AS | 13
ENGLISH
INSTALLATION
Installation
INSTALLATION
Installation
ff
Push the cover upwards.
26_03_01_1864
26_03_01_1862
D0000035356
26_03_01_1863
Access to the wiring chamber
ff
Connect the electric emergency/booster heater if you want to
utilise the following appliance functions:
1
2
26_03_01_1865
Appliance function
Mono energetic operation
1 Strain relief
2 Wiring chamber
ff
Route cables and leads through the strain reliefs.
If space behind the appliance is limited, the wiring chamber can
be folded out.
14 | WPL A | WPL AS
Effect of the electric emergency/booster
heater
If the heat pump cannot reach the dual mode point, the
electric emergency/booster heater ensures both the
heating operation and the provision of high DHW temperatures.
Emergency mode Should the heat pump suffer a fault that prevents its
continued operation, the heating output will be covered
by the electric emergency/booster heater.
Heat-up program Where return temperatures are <25 °C, the electric
(only for underfloor emergency/booster heater must provide the necessary
heating systems)
heat for screed drying.
With these low system temperatures, the drying heat
must not be provided by the heat pump, otherwise the
frost protection of the appliance can no longer be guaranteed during the defrost cycle.
When the heat-up program has ended, you can disconnect the electric emergency/booster heater if it is not
required for the appliance operation.
Please note that during the heat-up program, the emergency mode cannot be selected.
Pasteurisation
The electric emergency/booster heater starts automaticontrol
cally when the pasteurisation control is active in order to
regularly heat the DHW to 60 °C to protect it against the
growth of legionella bacteria.
ff
Connect cables according to the following diagram.
ff
Earth the LV lead by inverting the screen over the external
sheath and clamping it under the earth terminal.
ff
Then check the function of the strain relief fittings.
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INSTALLATION
Installation
10.13.1 Power connection WPL 15 AS
5
1
2
3
4
1
2
3
X2
1/N/PE~230/50
C 32A
L
N
L
N
L
L
1/N/PE~230/50
C 20A
1/N/PE~230/50
C 16A
-
L N
L1 L2 L3 N
X5 / DHC 3/N/PE~400/50
C 16A
BUS
2,6 kW
3,0 kW
3,2 kW
5,6 kW
5,8 kW
6,2 kW
8,8 kW
PE
N PE
N PE
L1
L2
L3
L1 L2
L1
L3
L2 L3
L1 L2 L3
N
N
N
N
N
N
N
L1 L2 L3 N
X3 / WP
-
ON
ER
R
X4 / Steuerung
L N
X4 / Steuerung
3/N/PE~400/50
C 16A
PE
PE
PE
PE
PE
PE
PE
1/N/PE~230/50
C 16A
D0000037825
3,0 kW
3,2 kW
6,2 kW
N
X3 / WP
H
L
L
26_03_01_1859
BUS
L N
X5 / DHC
ON
ER
R
„ +“
N
T
T
L
„+“
X2
H
L
5
ENGLISH
4
10.13.2 Power connection WPL 25 A
1
2
3
4
5
X5
Electric emergency/booster heater (DHC)
L, N, L, N, PE
1
Connected load
Terminal allocation
3,0 kW
3,2 kW
6,2 kW
L
L
N
N
L
L
N
N
X5
PE
PE
PE
X3 Compressor (inverter)
L, N, PE
X4
X2
Control voltage
Power supply: L, N, PE
Low voltage (BUS cable)
BUS High H
BUS Low L
BUS earth
BUS "+" (is not connected)
Terminal allocation
2,6 kW
3,0 kW
3,2 kW
5,6 kW
5,8 kW
6,2 kW
8,8 kW
L1
L2
L3
L1
L1
L1
X3 Compressor (inverter)
L1, L2, L3, N, PE
3
X4
Control voltage
Power supply: L, N, PE
4
X2
Low voltage (BUS cable)
BUS High H
BUS Low L
BUS earth
BUS "+" (is not connected)
The tested appliance conforms to IEC 61000-3-12.
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Connected load
2
Earth terminal for screening the LV lead
The maximum permissible mains impedance is indicated in chapter “Specification / Data table”.
Electric emergency/booster heater (DHC)
L1, L2, L3, N, PE
5
L2
L2
L2
L3
L3
L3
PE
PE
PE
PE
PE
PE
PE
Earth terminal for screening the LV lead
WPL A | WPL AS | 15
INSTALLATION
Installation
10.13.3 Power connection WPL 25 AS
4
5
Closing the wiring chamber
1
2
3
1
2
L N
X5 / DHC
L
1/N/PE~230/50
C 32A
L
N
L
N
L
L
X4 / Steuerung
1/N/PE~230/50
C 36A
1/N/PE~230/50
C 16A
-
L N
PE
N PE
N PE
D0000037825
3,0 kW
3,2 kW
6,2 kW
N
X3 / WP
1
X5
Electric emergency/booster heater (DHC)
L, N, L, N, PE
Connected load
Terminal allocation
3,0 kW
3,2 kW
6,2 kW
L
L
2
X3 Compressor (inverter)
L, N, PE
3
X4
Control voltage
Power supply: L, N, PE
4
X2
Low voltage (BUS cable)
BUS High H
BUS Low L
BUS earth
BUS "+" (is not connected)
N
L
L
N
N
PE
PE
PE
1 Serrated washer
2 Screw
ff
Secure the cover with the screw and serrated washer.
ff
Connect the following components to the heat pump manager in accordance with the technical guides:
-- Circulation pump for the heat consumer side
-- Outside temperature sensor
-- Return sensor (only for operation with buffer cylinder)
10.13.4 Electrical connection of supplementary heating facility
If required, you can mount a ribbon heater on the condensate pan
and the condensate hose on site. We recommend that you install
a ribbon heater if the routing of the condensate hose means it is
at risk of frost or is fully exposed to the elements. A ribbon heater
must be fitted if the condensate hose is installed on a wall mounting panel. See also chapter “Electrical connection”.
Access to the wiring chamber
Earth terminal for screening the LV lead
26_03_01_1544
5
N
D0000035356
„+“
N
BUS
ON
ER
R
L
T
H
L
X2
ff
Remove the cover.
16 | WPL A | WPL AS
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INSTALLATION
Commissioning
Closing the wiring chamber
ENGLISH
A.
1
26_03_01_1867
D0000035975
1
Electrical connection for ribbon heater
Power supply: L, N, PE
ff
Position the cover on the appliance.
ff
Secure the cover with the four screws.
B.
11. Commissioning
A WPM heat pump manager is required to operate the appliance.
All necessary adjustments prior to and during operation are made
on this device.
Only qualified contractors may carry out the adjustments on the
heat pump manager commissioning report, commission the appliance and instruct the owner in its use.
D0000035976
Carry out commissioning in accordance with these installation
instructions and the operating and installation instructions of the
heat pump manager. Our customer service can assist with commissioning, which is a chargeable service.
Where this appliance is intended for commercial use, the rules of
the relevant Health & Safety at Work Act must be observed at commissioning. For further details, check your local authorising body.
After commissioning, complete the commissioning report that is
included in these instructions.
11.1 Checks before commissioning
Before commissioning, check the following points.
D0000033168
11.1.1 Heating system
-- Have you filled the heating system to the correct pressure,
and opened the quick-action air vent valve?
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11.1.2 Temperature sensor
-- Have you correctly positioned and connected the outside
temperature sensor and the return temperature sensor (in
conjunction with a buffer cylinder)?
WPL A | WPL AS | 17
INSTALLATION
Commissioning
11.1.3 High limit safety cut-out
In ambient temperatures of below -15 °C it is possible that the high
limit safety cut-out of the electrical emergency/booster heater
may trip.
ff
Check whether the high limit safety cut-out has tripped.
11.2 Using the appliance with an external second
heat generator
The appliance is factory set for single compressor operation with
an electric emergency/booster heater. If the appliance is used in
dual mode with an external second heat generator or as a module with an additional identical heat pump, you must set the DIP
switch to WP Type 4 (see chapter "Troubleshooting / Checking the
IWS DIP switch settings / Single compressor mode with an external
second heat generator").
11.3 Settings
1
26_03_01_1880
11.3.1 Heating curve adjustment
The efficiency of a heat pump decreases as the flow temperature
rises. The heating curve should therefore be adjusted with care.
Heating curves that are set too high cause the zone valves and
thermostatic valves to close, which may lead to the minimum flow
rate required for the heating circuit not being achieved.
ff
Observe the WPM operating and installation instructions.
The following steps will help you to adjust the heating curve correctly:
-- Fully open thermostatic or zone valves in a lead room (e.g.
living room and bathroom).
We do not recommend installing thermostatic or zone valves
in the lead room. Control the temperature for these rooms
via remote control.
-- At different outside temperatures (e.g. –10 °C and +10 °C),
adjust the heating curve so the required temperature is set in
the lead room.
1 Electric emergency/booster heater
ff
Remove the cause of the fault.
1
Standard values to begin with:
26_03_01_1872
Parameter
Heating curve
1 High limit safety cut-out reset button
ff
Reset the high limit safety cut-out by pressing the reset
button.
Underfloor heating system Radiator heating system
0.4
0.8
Control response time 5
15
Comfort temperature 20 °C
20 °C
If the room temperature in spring and autumn is too low (approx.
10 °C outside temperature), the value of parameter COMFORT TEMPERATURE must be raised in the heat pump manager menu under
SETTINGS / HEATING / HEATING CIRCUIT.
Note
If no remote control is installed, raising the parameter
“COMFORT TEMPERATURE” leads to a parallel offset of
the heating curve.
11.1.4 Power supply
-- Have you correctly connected the power supply?
Increase the parameter “heating curve” if the room temperature
is not high enough when outside temperatures are low.
If the parameter “heating curve” has been raised, adjust the zone
valve or thermostatic valve in the lead room to the required temperature at high outside temperatures.
!
18 | WPL A | WPL AS
Material losses
Never reduce the temperature in the entire building by
closing all zone or thermostatic valves, instead use the
setback programs.
www.stiebel-eltron.com
INSTALLATION
Maintenance
!
Material losses
With underfloor heating systems, observe the maximum
permissible temperature for the system.
12. Maintenance
We recommend that you perform an annual inspection (to establish the current condition of the system), and as required have
maintenance carried out (to return the system to its original condition).
Check the condensate drain (visual inspection). Remove contaminants and blockages immediately.
11.3.2 Further WPM settings
ff
For operation with and without buffer cylinder, observe
chapter “Operation / Menu structure / Menu SETTINGS /
STANDARD SETTING / BUFFER OPERATION” in the operating
and installation instructions of the WPM.
1.
When using the heat-up program
If you use the heat-up program, make the following settings on
the WPM 3:
ff
Initially set parameter “DUAL MODE TEMP HZG” to 30 °C.
ff
Then set parameter “LOWER APP LIMIT HZG” to 30 °C.
11.4 Operation and control
!
Material losses
Never interrupt the power supply, even outside the heating season. The system's active frost protection is not
guaranteed if the power supply is interrupted.
1
D0000037831
Note
After completing the heat-up process, reset the parameter “DUAL MODE TEMP HZG” and “LOWER APP LIMIT HZG”
to their respective standard values or to the respective
system values.
2.
1 Inspection port
!
Material losses
Keep the air discharge and intake apertures free from
snow and ice.
Remove any leaves or other foreign bodies from the evaporator
fins periodically.
The system does not have to be switched off in summer. The heat
pump manager has an automatic summer / winter changeover.
11.5 Decommissioning
If the system is to be taken out of use, set the WPM to standby.
This retains the safety functions designed to protect the system
(e.g. frost protection).
!
Material losses
If the heat pump and frost protection are completely
switched off, drain the system on the water side.
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WPL A | WPL AS | 19
ENGLISH
When everything has been implemented correctly, the system
can be heated to its maximum operating temperature and vented
once again.
INSTALLATION
Troubleshooting
13. Troubleshooting
1
WARNING Electrocution
ff
Before any work, isolate the appliance from the
power supply at the control panel.
Following isolation from the mains supply, parts of the
appliance may remain live for up to 2 minutes since
the capacitors still have to discharge into the inverter.
26_03_01_1870
Note
Please observe the heat pump manager operating and
installation instructions.
If a fault cannot be located during service using the heat pump
manager, open the control panel in emergencies and check the
IWS settings. This check must only be carried out by a qualified
contractor.
1 IWS
ff
Lift the cover.
13.5.1 Checking the IWS DIP switch settings
IWS
Carry out the following steps to make the IWS accessible.
1
2
26_03_01_1866
BA
ff
Remove the cover.
4
1
2
3
4
3
C26_03_01_0921
BA
LEDs
DIP switch (WP-Typ)
Reset button
DIP switch (BA)
DIP switch (WP-Typ)
ff
Remove the bracket highlighted in grey.
Factory setting
Single compressor mode with electric emergency/booster
heater
WP - Typ
ON
1
2
3
D0000057054
26_03_01_1869
With the DIP switch ("WP-Typ"), you can select the various heat
pump types on the IWS.
4
ff
Check whether the DIP switch is set correctly.
20 | WPL A | WPL AS
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INSTALLATION
Troubleshooting
!
ENGLISH
13.1 Light emitting diodes (LEDs)
Single compressor mode with an external second heat
generator
Damage to the appliance and environment
In this case, do not connect the electric emergency/booster heater.
1
If the appliance is operated in dual mode with an external second
heat generator or as a module with a further heat pump of the
same design, set the DIP switch to "WP Type 4".
ff
Set the DIP switch as follows.
BA
WP - Typ
ON
3
4
2
1 LEDs
2 Reset button
DIP switch (BA)
ff
Check whether the DIP switch (BA) is set correctly.
The following table shows the meaning of the LEDs of the IWS.
LED indicator
Red LED flashes
Heating operation
BA
1
2
3
4
D0000057052
Red LED illuminates
ON
26_03_01_0921
2
D0000057055
1
BA
13.5.2 Closing the wiring chamber
Green LED (centre)
flashes
Green LED (centre) illuminates
Meaning
Single fault. Appliance stops and restarts after 10
minutes, and the LED extinguishes.
More than 5 faults within 2 hours run. The appliance is shut down permanently and only restarts
following a reset on the IWS. The internal fault
counter will then be reset. The appliance can be restarted after 10 minutes. The LED extinguishes.
The heat pump is initialising.
The heat pump has been initialised successfully and
the connection with the WPM is active.
Faults indicated by the red LED:
-- High pressure fault
-- Low pressure fault
-- Other fault and
-- Hardware fault on the IWS (see fault list)
13.2 Reset button
26_03_01_1867
If the IWS was not initialised successfully, you can reset the settings with this button.
ff
For this, also observe chapter "Reinitialising the IWS" in the
heat pump manager operating and installation instructions.
ff
Position the cover on the appliance.
ff
Secure the cover with the four screws.
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WPL A | WPL AS | 21
INSTALLATION
Troubleshooting
13.3 Resetting the high limit safety cut-out
The electric emergency/booster heater stops if the heating water
temperature exceeds 85 °C, for example on account of a low flow
rate.
ff
Carry out a manual defrost, repeatedly if required, until the
fan runs free again.
ff
At outside temperatures above + 1 °C, switch the appliance
off for around 1 hour or switch it over to emergency mode.
After this, the ice should have melted.
ff
Check whether the appliance is installed in line with the installation conditions.
ff
If the noises occur frequently, notify customer support.
26_03_01_1880
1
1 Electric emergency/booster heater
ff
Remove the cause of the fault.
26_03_01_1872
1
1 High limit safety cut-out reset button
ff
Reset the high limit safety cut-out by pressing the reset
button.
ff
Check whether the heating water is being circulated at a sufficient flow rate.
13.4 Fan noise
The heat pump draws heat from the outdoor air. This causes the
outdoor air to cool down. At outside temperatures of 0 °C to 8 °C,
the air may be cooled to below freezing point. If under these
conditions precipitation occurs in the form of rain or fog, ice may
form on the air grille, the fan blades or the air routing. If the fan
comes into contact with this ice, noise develops.
How to remedy rhythmically scratching or grinding noises:
ff
Check whether the condensate drain is free from obstruction.
ff
Check whether the design output and temperature are set
correctly. Ice formation is particularly pronounced when
a high heating output is demanded at moderate outside
temperatures.
22 | WPL A | WPL AS
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ENGLISH
INSTALLATION
Troubleshooting
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WPL A | WPL AS | 23
INSTALLATION
Specification
14. Specification
14.1 Dimensions and connections
14.1.1 WPL 15 AS
d45
70
100
490
410
1160
900
1270
593
g02
82
157
g01
d47
100
e02 e01
e01
Heating flow
e02
Heating return
d45
d47
g01
g02
Condensate drain
Drain
Air intake
Air discharge
24 | WPL A | WPL AS
Type of connection
Diameter
Type of connection
Diameter
Diameter
mm
mm
mm
D0000034131
176
WPL 15 AS
Plug-in connection
28
Plug-in connection
28
22
www.stiebel-eltron.com
INSTALLATION
Specification
d45
100
490
410
ENGLISH
14.1.2 WPL 25 A | WPL 25 AS
1380
1490
593
g02
82
157
1045
g01
d47
100
e02 e01
e01
Heating flow
e02
Heating return
d45
d47
g01
g02
Condensate drain
Drain
Air intake
Air discharge
www.stiebel-eltron.com
Type of connection
Diameter
Type of connection
Diameter
Diameter
mm
mm
mm
WPL 25 A
Plug-in connection
28
Plug-in connection
28
22
D0000028296
176
WPL 25 AS
Plug-in connection
28
Plug-in connection
28
20
WPL A | WPL AS | 25
INSTALLATION
Specification
14.2 Wiring diagram for WPL 15 AS | WPL 25 AS (single-phase)
X3 Netz WP
X5 Netz DHC
L
N
L
L
N
X4 Netz Steuerung
N
ON ERR L
1
N
X23
X23
M6
X27/1
2
X27/2
K6
B
X7
3
A
K7
B
K2
2
4
1
3
F4
A
X8
bl
sw
X27/2
6
L1 L2
FROM AC
5
4
3
2
1
X1
X29
X27/8
1
A4
N
2
TO DRIVE
L1 L2
A2
K2
3
A1
4
L
K2
nc
5
ERR
6
Rohrbegleitheizung
7
Abtauen
8
ON
9
X27/7
HD
10
L
F5
12 22 32
>p
12
N PE
U
V
EVU
nc
nc
A
X38
1
A3
T>
11 21 31
F3
11
2
3
W PE
DHC1
(IW
DHC2
Ölsumpfheizung
X27/9
X43
1
2
3
4
1
3
+5V
H Modbus
L Modbus
X40
K6
1
1
3
GND
2
K7
3
X46
4
5
6
GND ???
Frequenzeing. 0...5V ???
+5V 20 mA ???
nc
nc
+12..+18V ???
E1
X39
V
N L L’
W
M
3~
Y2
P3=3200W
sw bl br
P2=3000W
P1=2600W
A2
A3
A4
B1
B2
B5
B6
B7
B8
B9
B10
B11
B12
B13
E1
E2
V1
Integral heat pump control unit (IWS)
Inverter compressor
Filter assembly
Heating flow temperature sensor - KTY
Heating return temperature sensor - KTY
Hot gas temperature sensor - PT1000
Outdoor air temperature sensor - PT1000
Compressor intake temperature sensor - PT1000
Evaporator discharge temperature sensor - PT1000
Frost protection temperature sensor - KTY
Injection temperature sensor - PT1000
Exhaust air temperature sensor - KTY
Condenser outlet temperature sensor - KTY
Oil sump temperature sensor - KTY
DHC
Oil sump heater
26 | WPL A | WPL AS
Y1
M1
F3
F4
F5
K2
K5
K6
M1
M6
M7
M8
P1
P3
P4
V1
X1
X2
E2
D0000028167
U
High pressure switch 42 bar
Fuse 10 A (fan)
High limit safety cut-out for DHC
Compressor start contactor L
DHC relay
DHC relay
Compressor motor
Fan motor
Electrical expansion valve stepper motor
Electrical injection valve stepper motor
High pressure sensor (42 bar)
Low pressure sensor (16 bar)
Mean pressure sensor (30 bar)
Flow sensor
Internal distribution terminal
External BUS terminal
www.stiebel-eltron.com
T
B11
ENGLISH
INSTALLATION
Specification
X2 Busanschluss WP
H
L
T
X7
“+”
X27/2
X36
Lüfter Drehz.
Lüfter +10V
Lüfter 0...10V
Lüfter GND
4
3
2
1
X35
Heizungsrücklauf
Außenluft
Verdichtereintritt
Verdampferaustritt
R
GND
hrbegleitheizung
Einspritzung
6
5
4
3
2
1
X41
X30
tauen
N
CAN GND
CAN L
D
CAN H
U
3
2
1
X34
Heizungsvorlauf
+12...+18V
A2
(IWS III)
HC1
HC2
GND
ND 4...20mA
HD 4...20mA
MD 4...20mA
Heißgas
sumpfheizung
7
6
5
4
3
2
X41
1
X33
+12V
Phase 1
Phase 2
D
Phase 3
V
Phase 4
Modbus
5
1
4
2
1
+12V
Phase 1
D ???
X39
1
2
3
4
5
6
Phase 4
2
3
4
5
4
3
2
1
GND
0-5V Eingang
Phase 3
nc
Ölsumpftemperatur
2..+18V ???
Fortluft
Frostschutz
V 20 mA ???
Verflüssigeraustritt
Phase 2
quenzeing. 0...5V ???
1
X6
X37
Modbus
X8 / F4
2 X9
3
7
X42
3
2
3
1
2
1
3
2
1
M
1~
T
M8
T
X3
X4
X5
X6
X7
X8
X23
X27
X29
X30
X33
X34
X35
X36
X37
X38
B11
T
B9
T
B12
T
B5
p
p
p
P4
P1
P3
T
B1
T
B10
T
B8
T
B7
T
B6
T
M7
External power terminal
External control terminal
External DHC terminal
4-pole terminal
3-pole terminal
2-pole terminal
Power supply earth block
Earth stud
IWS plug 12-pin - control unit
IWS plug 3-pin - BUS
IWS plug 5-pin - electrical expansion valve
IWS plug 7-pin - sensors
IWS plug 6-pin - temperature sensors
IWS plug 3-pin - fan
IWS plug 5-pin - electrical injection valve
IWS plug 3-pin - oil sump
B2
M6
B13
www.stiebel-eltron.com
L
N
M
X39
X40
X41
X42
X43
X45
Y1
D0000028167
M
IWS plug 7-pin - temperature
IWS plug 6-pin - HT special
Link PCB ground
Link PCB ground
IWS plug 3-pin - Modbus
Plug-in connector
Diverter valve - defrost
WPL A | WPL AS | 27
INSTALLATION
Specification
14.3 Wiring diagram for WPL 25 A (3-phase)
X3 Netz WP
X5 Netz DHC
N
X4 Netz Steuerung
ON ERR L
L1 L2 L3 N
L1 L2 L3
1
N
X23
X23
M6
X27/1
B
2
4
6
14
1
3
5
13
X7
3
X27/2
K5
A
K6
B
K2
2
F4
X8
A
K7
B
bl
sw
A
X27/2
6
5
4
3
2
1
X1
X29
X27/8
1 1 1
S1 S2 S3
1
N
2
X27/3
A2
K2
3
A1
4
L
K2
nc
5
2 2 2
ERR
6
Rohrbegleitheizung
7
Abtauen
8
ON
9
X27/7
HD
10
L1 L2
F5
12 22 32
11
>p
12
PE
U
V
EVU
nc
nc
A
X38
1
A3
T>
11 21 31
L3
F3
2
3
W PE
DHC1
(IW
DHC2
Ölsumpfheizung
X27/9
1
X43
1
K5
3
2
3
4
1
3
+5V
H Modbus
L Modbus
X40
K6
1
1
2
K7
3
GND
3
X46
4
5
6
GND ???
Frequenzeing. 0...5V ???
+5V 20 mA ???
nc
nc
+12..+18V ???
E1
X39
V
N L L’
W
M
3~
Y2
P3=3200W
sw bl br
P2=3000W
P1=2600W
A2
A3
B1
B2
B5
B6
B7
B8
B9
B10
B11
B12
B13
E1
E2
F3
F4
V1
Integral heat pump control unit (IWS)
Inverter compressor
Heating flow temperature sensor - KTY
Heating return temperature sensor - KTY
Hot gas temperature sensor - PT1000
Outdoor air temperature sensor - PT1000
Compressor intake temperature sensor - PT1000
Evaporator discharge temperature sensor - PT1000
Frost protection temperature sensor - KTY
Injection temperature sensor - PT1000
Exhaust air temperature sensor - KTY
Condenser outlet temperature sensor - KTY
Oil sump temperature sensor - KTY
DHC
Oil sump heater
High pressure switch 42 bar
Fuse 10 A (fan)
28 | WPL A | WPL AS
Y1
M1
F5
K2
K5
K6
K7
M1
M6
M7
M8
P1
P3
P4
S1
S2
S3
V1
X1
E2
D0000028167
U
High limit safety cut-out for DHC
Compressor start contactor L
DHC relay
DHC relay
DHC relay
Compressor motor
Fan motor
Electrical expansion valve stepper motor
Electrical injection valve stepper motor
High pressure sensor (42 bar)
Low pressure sensor (16 bar)
Mean pressure sensor (30 bar)
Sinter filter coil
Sinter filter coil
Sinter filter coil
Flow sensor
Internal distribution terminal
www.stiebel-eltron.com
T
B11
ENGLISH
INSTALLATION
Specification
X2 Busanschluss WP
H
L
T
X7
“+”
X27/2
X36
Lüfter Drehz.
Lüfter +10V
Lüfter 0...10V
Lüfter GND
4
3
2
1
X35
Heizungsrücklauf
Außenluft
Verdichtereintritt
Verdampferaustritt
R
GND
hrbegleitheizung
Einspritzung
6
5
4
3
2
1
X41
X30
tauen
N
CAN GND
CAN L
D
CAN H
U
3
2
1
X34
Heizungsvorlauf
+12...+18V
A2
(IWS III)
HC1
HC2
GND
ND 4...20mA
HD 4...20mA
MD 4...20mA
Heißgas
sumpfheizung
7
6
5
4
3
2
X41
1
X33
+12V
Phase 1
Phase 2
D
Phase 3
V
Phase 4
Modbus
5
1
4
2
1
+12V
Phase 1
D ???
X39
1
2
3
4
5
6
Phase 4
2
3
4
5
4
3
2
1
GND
0-5V Eingang
Phase 3
nc
Ölsumpftemperatur
2..+18V ???
Fortluft
Frostschutz
V 20 mA ???
Verflüssigeraustritt
Phase 2
quenzeing. 0...5V ???
1
X6
X37
Modbus
X8 / F4
2 X9
3
7
X42
3
2
3
1
2
1
3
2
1
M
1~
T
M8
T
X2
X3
X4
X5
X6
X7
X8
X23
X27
X29
X30
X33
X34
X35
X36
X37
X38
B11
T
B9
T
B12
T
B5
p
p
p
P4
P1
P3
T
B1
T
B10
T
B8
T
B7
T
B6
T
M7
External BUS terminal
External power terminal
External control terminal
External DHC terminal
4-pole terminal
3-pole terminal
2-pole terminal
Power supply earth block
Earth stud
IWS plug 12-pin - control unit
IWS plug 3-pin - BUS
IWS plug 5-pin - electrical expansion valve
IWS plug 7-pin - sensors
IWS plug 6-pin - temperature sensors
IWS plug 3-pin - fan
IWS plug 5-pin - electrical injection valve
IWS plug 3-pin - oil sump
B2
M6
B13
www.stiebel-eltron.com
L
N
M
X39
X40
X41
X42
X43
Y1
D0000028167
M
IWS plug 7-pin - temperature
IWS plug 6-pin - HT special
Link PCB ground
Link PCB ground
IWS plug 3-pin - Modbus
Diverter valve - defrost
WPL A | WPL AS | 29
INSTALLATION
Specification
14.4 Heating output diagram WPL 15 AS
10
1
2
3
5
4
5
0
X
Y
1
2
3
4
5
6
-20
-15
-10
-5
0
5
10
15
D000003790
6
20
Outside temperature [°C]
Heating output [kW]
max. W55
max. W45
max. W35
min. W55
min. W45
min. W35
14.5 DHW output diagram WPL 15 AS
8
7
6
5
1
4
4
3
2
0
X
Y
1
4
-20
-10
0
10
20
30
40
D0000037920
1
Outside temperature [°C]
DHW output [kW]
max. W55
min. W55
30 | WPL A | WPL AS
www.stiebel-eltron.com
INSTALLATION
Specification
ENGLISH
14.6 Heating output diagram WPL 25 AS
20
15
1
2
3
10
4
5
6
0
X
Y
1
2
3
4
5
6
-20
-15
-10
-5
0
5
10
15
D0000038667
5
20
Outside temperature [°C]
Heating output [kW]
max. W55
max. W45
max. W35
min. W55
min. W45
min. W35
14.7 DHW output diagram WPL 25 AS
16
14
12
10
1
8
4
6
4
0
X
Y
1
4
-20
-10
0
10
20
30
40
D0000038667
2
Outside temperature [°C]
DHW output [kW]
max. W55
min. W55
www.stiebel-eltron.com
WPL A | WPL AS | 31
INSTALLATION
Specification
14.8 Heating output diagram WPL 25 A
20
15
1
2
3
10
4
5
6
0
X
Y
1
2
3
4
5
6
-20
-15
-10
-5
0
5
10
15
D0000036163
5
20
Outside temperature [°C]
Heating output [kW]
max. W55
max. W45
max. W35
min. W55
min. W45
min. W35
14.9 DHW output diagram WPL 25 A
16
14
12
10
1
8
4
6
4
0
X
Y
1
4
-20
-10
0
10
20
30
40
D0000036163
2
Outside temperature [°C]
DHW output [kW]
max. W55
min. W55
32 | WPL A | WPL AS
www.stiebel-eltron.com
INSTALLATION
Data table
ENGLISH
15. Data table
The performance data apply for new appliances with clean heat exchangers.
The power consumption figures for the integral auxiliary drives are maximum values and may vary subject to operating point.
The power consumption of the integral auxiliary drives is included in the output details of the heat pump (to EN 14511).
Heating output
Heating output at A7/W35 (min./max.)
Heating output at A2/W35 (min./max.)
Heating output at A-7/W35 (min./max.)
Heating output to EN 14511
Heating output at A7/W35 (EN 14511)
Heating output at A2/W35 (EN 14511)
Heating output at A-7/W35 (EN 14511)
Heating output at A-7/W55 (EN 14511)
Heating output at A-15/W35 (EN 14511)
Power consumption
Power consumption, fan heating max.
Power consumption, emergency/booster heater
Power consumption to EN 14511
Power consumption at A2/W35 (EN 14511)
Power consumption at A7/W35 (EN 14511)
Power consumption at A-7/W35 (EN 14511)
Power consumption at A-7/W55 (EN 14511)
Power consumption at A-15/W35 (EN 14511)
COP to EN 14511
COP at A7/W35 (EN 14511)
COP at A2/W35 (EN 14511)
COP at A-7/W35 (EN 14511)
COP at A-7/W55 (EN 14511)
COP at A-15/W35 (EN 14511)
Sound data
Sound power level (EN 12102)
Sound pressure level at 5 m distance in a free field
Sound power level, outdoor installation (EHPA, A7/W65)
Max. sound power level, outdoor installation
Application limits
Min. application limit, heat source
Max. application limit, heat source
Min. application limit on the heating side
Max. application limit on the heating side
Application limit heat source at W60
Application limit heat source at W65
Water hardness
pH value (with aluminium compounds)
pH value (without aluminium compounds)
Conductivity (softening)
Conductivity (desalination)
Chloride
Oxygen 8-12 weeks after filling (softening)
Oxygen 8-12 weeks after filling (desalination)
Energy data
Energy efficiency class, average climate, W55/W35
Electrical data
MCB/fuse protection, emergency/booster heater
Rated voltage, compressor
Rated voltage, controller
Rated voltage, emergency/booster heater
Phases, compressor
Phases, controller
Phases, emergency/booster heater
Compressor fuse/MCB
www.stiebel-eltron.com
WPL 15 AS
232491
WPL 25 AS
232492
WPL 25 A
232493
kW
kW
kW
3.50/7.40
3.10/7.09
2.50/6.86
6.20/14.00
4.59/13.64
4.40/13.05
6.20/14.00
4.59/13.64
4.40/12.86
kW
kW
kW
kW
kW
4.28
4.23
6.86
7.09
6.16
8.00
8.32
13.05
13.97
11.96
7.84
8.33
12.86
13.93
12.05
kW
kW
0.1
6.2
0.2
6.2
0.2
8.8
kW
kW
kW
kW
kW
1.09
0.94
2.42
3.38
2.45
2.10
1.66
4.38
5.94
4.56
2.00
1.54
4.16
5.76
4.48
4.55
3.88
2.83
2.10
2.51
4.82
3.96
2.98
2.35
2.62
5.09
4.17
2.93
2.42
2.69
dB(A)
dB(A)
dB(A)
dB(A)
55
33
58
65
56
34
56
67
56
34
56
67
°C
°C
°C
°C
°C
°C
°dH
-20
40
15
65
-12
-4
≤3
8.0-8.5
8.0-10.0
<1000
20-100
<30
<0.02
<0.1
-20
40
15
65
-15
-4
≤3
8.0-8.5
8.0-10.0
<1000
20-100
<30
<0.02
<0.1
-20
40
15
65
-15
-4
≤3
8.0-8.5
8.0-10.0
<1000
20-100
<30
<0.02
<0.1
A++/A++
A+/A++
A++/A++
2 x B 16
230
230
230
1/N/PE
1/N/PE
2/N/PE
1 x C 20
2x B 16
230
230
230
1/N/PE
1/N/PE
2/N/PE
1 x C 35
3 x C 16
400
230
400
3/N/PE
1/N/PE
3/N/PE
3 x C 16
μS/cm
μS/cm
mg/l
mg/l
mg/l
A
V
V
V
A
WPL A | WPL AS | 33
INSTALLATION
Data table
MCB/fuse protection, controller
starting current
Versions
Refrigerant
Refrigerant charge
IP rating
Condenser material
Dimensions
Height
Width
Depth
Weights
Weight
Connections
Connection, heating flow/return
Values
Heating flow rate (EN 14511) at A7/W35, B0/W35 and 5 K
Permissible operating pressure, heating circuit
Flow rate, heat source side
Min heating flow rate
Internal pressure differential
34 | WPL A | WPL AS
WPL 15 AS
1 x B 16
7
WPL 25 AS
1 x B 16
10
WPL 25 A
1 x B 16
5
R410 A
4.2
IP14B
1.4401/Cu
R410 A
5.5
IP14B
1.4401/Cu
R410 A
5.5
IP14B
1.4401/Cu
mm
mm
mm
900
1270
593
1045
1490
593
1045
1490
593
kg
140
175
175
28 mm
28 mm
28 mm
0.7
0.3
2300
0.7
60
1.4
0.3
4000
1.0
110
1.4
0.3
4000
1.0
110
A
A
kg
m³/h
MPa
m³/h
m³/h
hPa
www.stiebel-eltron.com
Warranty | Environment and recycling ENGLISH
Guarantee
The guarantee conditions of our German companies do not
apply to appliances acquired outside of Germany. In countries
where our subsidiaries sell our products a guarantee can only
be issued by those subsidiaries. Such guarantee is only granted if the subsidiary has issued its own terms of guarantee. No
other guarantee will be granted.
We shall not provide any guarantee for appliances acquired in
countries where we have no subsidiary to sell our products.
This will not affect warranties issued by any importers.
Environment and recycling
We would ask you to help protect the environment. After use,
dispose of the various materials in accordance with national
regulations.
KYOTO | R410A
This device is filled with refrigerant R410A.
Refrigerant R410A is a CFC greenhouse gas mentioned in the Kyoto
protocol with a global greenhouse potential (GWP) = 1925.
Never release refrigerant R410A to atmosphere.
www.stiebel-eltron.com
WPL A | WPL AS | 35
Deutschland
STIEBEL ELTRON GmbH & Co. KG
Dr.-Stiebel-Straße 33 | 37603 Holzminden
Tel. 05531 702-0 | Fax 05531 702-480
info@stiebel-eltron.de
www.stiebel-eltron.de
Verkauf
Tel. 05531 702-110 | Fax 05531 702-95108 | info-center@stiebel-eltron.de
Kundendienst
Tel. 05531 702-111 | Fax 05531 702-95890 | kundendienst@stiebel-eltron.de
Ersatzteilverkauf Tel. 05531 702-120 | Fax 05531 702-95335 | ersatzteile@stiebel-eltron.de
Australia
STIEBEL ELTRON Australia Pty. Ltd.
6 Prohasky Street | Port Melbourne VIC 3207
Tel. 03 9645-1833 | Fax 03 9645-4366
info@stiebel.com.au
www.stiebel.com.au
Austria
STIEBEL ELTRON Ges.m.b.H.
Eferdinger Str. 73 | 4600 Wels
Tel. 07242 47367-0 | Fax 07242 47367-42
info@stiebel-eltron.at
www.stiebel-eltron.at
Belgium
STIEBEL ELTRON bvba/sprl
't Hofveld 6 - D1 | 1702 Groot-Bijgaarden
Tel. 02 42322-22 | Fax 02 42322-12
info@stiebel-eltron.be
www.stiebel-eltron.be
China
STIEBEL ELTRON (Guangzhou) Electric
Appliance Co., Ltd.
Rm 102, F1, Yingbin-Yihao Mansion, No. 1
Yingbin Road
Panyu District | 511431 Guangzhou
Tel. 020 39162209 | Fax 020 39162203
info@stiebeleltron.cn
www.stiebeleltron.cn
Czech Republic
STIEBEL ELTRON spol. s r.o.
K Hájům 946 | 155 00 Praha 5 - Stodůlky
Tel. 251116-111 | Fax 235512-122
info@stiebel-eltron.cz
www.stiebel-eltron.cz
Finland
STIEBEL ELTRON OY
Kapinakuja 1 | 04600 Mäntsälä
Tel. 020 720-9988
info@stiebel-eltron.fi
www.stiebel-eltron.fi
France
STIEBEL ELTRON SAS
7-9, rue des Selliers
B.P 85107 | 57073 Metz-Cédex 3
Tel. 0387 7438-88 | Fax 0387 7468-26
info@stiebel-eltron.fr
www.stiebel-eltron.fr
Hungary
STIEBEL ELTRON Kft.
Gyár u. 2 | 2040 Budaörs
Tel. 01 250-6055 | Fax 01 368-8097
info@stiebel-eltron.hu
www.stiebel-eltron.hu
Japan
NIHON STIEBEL Co. Ltd.
Kowa Kawasaki Nishiguchi Building 8F
66-2 Horikawa-Cho
Saiwai-Ku | 212-0013 Kawasaki
Tel. 044 540-3200 | Fax 044 540-3210
info@nihonstiebel.co.jp
www.nihonstiebel.co.jp
Netherlands
STIEBEL ELTRON Nederland B.V.
Daviottenweg 36 | 5222 BH 's-Hertogenbosch
Tel. 073 623-0000 | Fax 073 623-1141
info@stiebel-eltron.nl
www.stiebel-eltron.nl
Poland
STIEBEL ELTRON Polska Sp. z O.O.
ul. Działkowa 2 | 02-234 Warszawa
Tel. 022 60920-30 | Fax 022 60920-29
biuro@stiebel-eltron.pl
www.stiebel-eltron.pl
Russia
STIEBEL ELTRON LLC RUSSIA
Urzhumskaya street 4,
building 2 | 129343 Moscow
Tel. 0495 7753889 | Fax 0495 7753887
info@stiebel-eltron.ru
www.stiebel-eltron.ru
A 303725-39064-9067
B 299941-39064-9067
4<AMHCMO=adhcf >
Irrtum und technische Änderungen vorbehalten! | Subject to errors and technical changes! | Sous réserve
d‘erreurs et de modifications techniques! | Onder voorbehoud van vergissingen en technische wijzigingen! |
Salvo error o modificación técnica! | Excepto erro ou alteração técnica | Zastrzeżone zmiany techniczne i
ewentualne błędy | Omyly a technické změny jsou vyhrazeny! | A muszaki változtatások és tévedések jogát
fenntartjuk! | Отсутствие ошибок не гарантируется. Возможны технические изменения. | Chyby a
technické zmeny sú vyhradené!
Stand 9046
Slovakia
TATRAMAT - ohrievače vody s.r.o.
Hlavná 1 | 058 01 Poprad
Tel. 052 7127-125 | Fax 052 7127-148
info@stiebel-eltron.sk
www.stiebel-eltron.sk
Switzerland
STIEBEL ELTRON AG
Industrie West
Gass 8 | 5242 Lupfig
Tel. 056 4640-500 | Fax 056 4640-501
info@stiebel-eltron.ch
www.stiebel-eltron.ch
Thailand
STIEBEL ELTRON Asia Ltd.
469 Moo 2 Tambol Klong-Jik
Amphur Bangpa-In | 13160 Ayutthaya
Tel. 035 220088 | Fax 035 221188
info@stiebeleltronasia.com
www.stiebeleltronasia.com
United Kingdom and Ireland
STIEBEL ELTRON UK Ltd.
Unit 12 Stadium Court
Stadium Road | CH62 3RP Bromborough
Tel. 0151 346-2300 | Fax 0151 334-2913
info@stiebel-eltron.co.uk
www.stiebel-eltron.co.uk
United States of America
STIEBEL ELTRON, Inc.
17 West Street | 01088 West Hatfield MA
Tel. 0413 247-3380 | Fax 0413 247-3369
info@stiebel-eltron-usa.com
www.stiebel-eltron-usa.com
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